INDEX. 



423 



Mariacrinus, 125. 



Marmots, 334. 



Marsupials, 809; of the Trias, 230; of 



the Jurassic, 261,262 ; of the Eocene, 



309; of the Miocene, 32(5; of the 



Post- Pliocene, 361, 362. 

 Marsupiocrinuis, 124. 

 Marsupites, 274. 

 Mastodon, 331, 333, 334; Americanus, 



angustidenv, 333; Arvencnsis, 341; 



longirostris, 333; Ohioticus, 370; Siva- 



lerutot 332. 



Medina Sandstone, 118. 

 Mcgalichthys, 192. 

 Me'galodon, 150. 



Megalomus, 130. , 



Me'galonyx, 365. 

 Mcgalosaurus, 2">6, 287. 

 Megatherium, 363, 364; Cuvieri, 363. 

 Melania, 304. 

 Melonites, 182. 

 Menevian Group, 77-79. 

 Menobranchits, 193. 

 Mcristclla 130; cylindrica, 129; iwter- 



media, 129; navijormis, 129. 

 Mesopithccus, 334. 

 Mesozoic Period, 45. 

 Micheltnia, 145. 

 Micraster, 275. 



Microlestes, 230 ; antiquus, 229. 

 Middle Devonian, 136; Eocene, 296, 



298, 299; Oolites, 234 ; Silurian, 92. 

 Miliolite Limestone, 300. 

 3fifpo?Y?,237. 

 Millstone Grit, 162, 164. 

 Miocene period, 316; rocks of, in 



Britain, 316; in France, 317: in 



Belgium, 317; in Switzerland, 317; 



in Austria, 317; in Germany, 318; 



in Italy, 318 ; in India, 318 ; in North 



America, 318; life of, 319-334. 

 Mitre-shells, 280, 303. 

 Mitra, 280, 803. 



Moas of New Zealand, 359-361. 

 Modiolopsis, 111 ; Solvensis, 88. 

 Molasse, 317. 

 Mole, 334, 349. 

 Monkeys, 316, 343, 

 Monocotyledonous plants, 271. 

 Monograptus, 101, 121 ; priodon, 121. 

 Monotis, 217. 



Monte Bolca, fishes of, 305. 

 Montlivaltia, 215. 

 Mosasauroids, 287, 288. 

 Mosasaurus, 287 ; Camperi, 287 ; prin- 



ceps, 288. 



Mountain Limestone, 161, 164. 

 Mud-fishes, 156, 221. 

 Mud-turtles, 289. 

 Mull, Miocene strata of, 316. 

 Murc.hisonia, 112, 131, 203, 219 ; gracilis, 



112. 



Murex, 244, 303. 

 Muschelkalk. 208, 209, 211. 

 Musk-deer, 328. 

 Musk-ox, 357, 358, 370. 

 Musk-sheep, 370. 

 Myliobntis, Edwardsii, 306. 

 Mylodon, 365 ; robuntus, 365. 

 Jfi/ophoria, 216; Uneata, 216. 

 Myriapoda of the Coal, 184, 185. 



Nassa, 303. 



Natatores, 807. 



Natica, 279, 303. 



Nautilus, 113-116, 132, 151, 190, 204, 244, 



280, 304; Danicus, 280; pompilius. 244. 

 Neanderthal skull, 378. 

 Neocomian series, 264, 268. 

 Neolimulus, 127. 



Nerinxa, 244, 279 ; Goodhallii. 244. 

 Nerita, 303. 

 Neuropteria, 322. 

 Neuropteris, 138, 167, 200. 

 Newer Pliocene, 335, 336. 

 New Red Sandstone, 197, 208. 

 Newts, 193, 204, 223. 

 Niagara Limestone, 118. 

 Nipadites, 300: ellipticus, 300. 

 Nseggerathia, 201. 

 Norwich Crag, 336. 

 Nothosaurus, 225 ; mirabilis, 225. 

 Notidanus, 249. 

 Numenius gypKorum, 307. 

 Nummulina, 176, 300; Itevigata; 301; 



pristina, 176. 

 Nummulitic Limestone, 25, 297, 301. 



Oak, 270, 321. 



Obolella, 88 ; sagittalis, 88. 



Odd-toed Ungulates, 310, 326, 340, 367. 



Odontaspis, 283. 



Odontopteris, 167 ; Schlotheimi, 168. 



Odontopteryx, 308; toliapicus, 308. 



Odontornithes, 290. 



Ogygi'a, 110 ; Buchii, 108. 



Older Pliocene, 335, 336. 



Oldhamia, 81; antiqua. 82; slates of 

 Ireland, 79, 80. 



Old Red Sandstone, 135; origin of 

 name, 135; of Scotland. 136; rela- 

 tions of, to Devonian, 135, 136, 157. 



Olenus, 109 ; micrurus, 88. 



Oligocene, 316. 



Oligoporus, 182. 



Olive-shells, 303. 



Omphyma, 121. 



Onchus, 132; tenuistriatus, 132. 



Oneida Conglomerate, 118. 



Onychodus, 156 ; sigmoides, 154. 



Oolitic limestone, structure of, 80; 

 mode of formation of, 30. 



Oolitic rocks (see Jurassic). 



Ooze Atlantic, 23, 34. 



Ophidia, 260; of the Eocene, 306. 



Ophiuridea, of the Lower Silurian, 

 106 ; of the Upper Silurian, 122; of 

 the Carboniferous, 180; of the 

 Trias, 215 ; of the Jurassic, 246. 



Opossum, 309, 326. 



Orbitoides, 301. 



Oriskany Sandstone, 137. 



Ormoxylon, 140. 



Orohippus, 312. 



Orthis, 89, 111, 127, 149, 188, 111; bifor- 

 ata, 110 ; Davidsoni, 129 ; elegantula, 

 129; flabellulum, 110; Hicksii, 88; 

 lenticularis, 88; plicatella, 111: re- 

 supinata,l89 ; subquadrata, 110 ; tes^w- 

 dinaria, 111. 



Orthoceras 89, 114, 115, 132, 151, 190, 114 ; 

 crebriseptnm, 114. 



Orthonota, 112. 



Orthoptera, 185, 322. 



